It's amazing how rude Facebook, reddit, and in this case, greedy companies, can be. If he cared enough about anyone knowing who he was, he'd have told someone. This is just blatant disregard for a man's privacy.
I don't think it's a reasonable presumption based only on the fact that he hadn't mentioned his legal/previous name that this person did not want to news of his death to reach people from elsewhere in his life.